package com.changgou.order.service.impl;

import com.changgou.order.dao.OrderItemMapper;
import com.changgou.order.dao.OrderMapper;
import com.changgou.order.pojo.OrderItem;
import com.changgou.order.service.CartService;
import com.changgou.order.service.OrderService;
import com.changgou.order.pojo.Order;
import com.changgou.util.IdWorker;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;
import tk.mybatis.mapper.entity.Example;

import java.util.Date;
import java.util.List;
import java.util.Map;

@Service
public class OrderServiceImpl implements OrderService {

    @Autowired
    private OrderMapper orderMapper;

    @Autowired
    private OrderItemMapper orderItemMapper;

    @Autowired
    private CartService cartService;

    @Autowired
    private RedisTemplate redisTemplate;

    @Autowired
    private IdWorker idWorker;

    //定义常量
    private final static String CART = "cart_";

    /**
     * 查询全部列表
     *
     * @return
     */
    @Override
    public List<Order> findAll() {
        return orderMapper.selectAll();
    }

    /**
     * 根据ID查询
     *
     * @param id
     * @return
     */
    @Override
    public Order findById(String id) {
        return orderMapper.selectByPrimaryKey(id);
    }


    /**
     * 增加
     *
     * @param order
     */
    @Override
    public void add(Order order) {
        //用户名
        String username = order.getUsername();

        //1.从redis中获取购物车信息
        Map cartInfo = cartService.list(username);

        //2.统计计算：总数量、总金额
        Integer totalNum = (Integer) cartInfo.get("totalNum");
        Integer totalMoney = (Integer) cartInfo.get("totalMoney");

        //3.填充订单数据，并保存至order表
        order.setTotalNum(totalNum);
        order.setTotalMoney(totalMoney);
        order.setPayMoney(totalMoney);
        order.setCreateTime(new Date());
        order.setUpdateTime(new Date());
        order.setBuyerRate("0");    //设置用户是否评价，0:未评价，1：已评价
        order.setSourceType("1");  //设置订单来源，1：WEB
        order.setOrderStatus("0");  //设置订单状态，1：已完成，2：已退货
        order.setPayStatus("0");  //是否已经支付，0：未支付，1：已支付
        order.setConsignStatus("0");  //是否已经发货，0：未发货，1：已发货

        long orderId = idWorker.nextId();   //雪花算法生成id
        order.setId(orderId + "");    //设置id

        orderMapper.insertSelective(order);

        //4.填充订单项数据，并保存至order_item表
        List<OrderItem> orderItemsList = (List<OrderItem>) cartInfo.get("orderItemsList");

        for (OrderItem item : orderItemsList) {
            item.setId(idWorker.nextId() + "");
            item.setIsReturn("0");           //是否退化，0：未退化，1：已退货
            item.setOrderId(orderId + "");   //设置订单id
            orderItemMapper.insertSelective(item);
        }

        //5.清除redis中购物车信息
        redisTemplate.delete(CART + username);

    }


    /**
     * 修改
     *
     * @param order
     */
    @Override
    public void update(Order order) {
        orderMapper.updateByPrimaryKey(order);
    }

    /**
     * 删除
     *
     * @param id
     */
    @Override
    public void delete(String id) {
        orderMapper.deleteByPrimaryKey(id);
    }


    /**
     * 条件查询
     *
     * @param searchMap
     * @return
     */
    @Override
    public List<Order> findList(Map<String, Object> searchMap) {
        Example example = createExample(searchMap);
        return orderMapper.selectByExample(example);
    }

    /**
     * 分页查询
     *
     * @param page
     * @param size
     * @return
     */
    @Override
    public Page<Order> findPage(int page, int size) {
        PageHelper.startPage(page, size);
        return (Page<Order>) orderMapper.selectAll();
    }

    /**
     * 条件+分页查询
     *
     * @param searchMap 查询条件
     * @param page      页码
     * @param size      页大小
     * @return 分页结果
     */
    @Override
    public Page<Order> findPage(Map<String, Object> searchMap, int page, int size) {
        PageHelper.startPage(page, size);
        Example example = createExample(searchMap);
        return (Page<Order>) orderMapper.selectByExample(example);
    }

    /**
     * 构建查询对象
     *
     * @param searchMap
     * @return
     */
    private Example createExample(Map<String, Object> searchMap) {
        Example example = new Example(Order.class);
        Example.Criteria criteria = example.createCriteria();
        if (searchMap != null) {
            // 订单id
            if (searchMap.get("id") != null && !"".equals(searchMap.get("id"))) {
                criteria.andEqualTo("id", searchMap.get("id"));
            }
            // 支付类型，1、在线支付、0 货到付款
            if (searchMap.get("payType") != null && !"".equals(searchMap.get("payType"))) {
                criteria.andEqualTo("payType", searchMap.get("payType"));
            }
            // 物流名称
            if (searchMap.get("shippingName") != null && !"".equals(searchMap.get("shippingName"))) {
                criteria.andLike("shippingName", "%" + searchMap.get("shippingName") + "%");
            }
            // 物流单号
            if (searchMap.get("shippingCode") != null && !"".equals(searchMap.get("shippingCode"))) {
                criteria.andLike("shippingCode", "%" + searchMap.get("shippingCode") + "%");
            }
            // 用户名称
            if (searchMap.get("username") != null && !"".equals(searchMap.get("username"))) {
                criteria.andLike("username", "%" + searchMap.get("username") + "%");
            }
            // 买家留言
            if (searchMap.get("buyerMessage") != null && !"".equals(searchMap.get("buyerMessage"))) {
                criteria.andLike("buyerMessage", "%" + searchMap.get("buyerMessage") + "%");
            }
            // 是否评价
            if (searchMap.get("buyerRate") != null && !"".equals(searchMap.get("buyerRate"))) {
                criteria.andLike("buyerRate", "%" + searchMap.get("buyerRate") + "%");
            }
            // 收货人
            if (searchMap.get("receiverContact") != null && !"".equals(searchMap.get("receiverContact"))) {
                criteria.andLike("receiverContact", "%" + searchMap.get("receiverContact") + "%");
            }
            // 收货人手机
            if (searchMap.get("receiverMobile") != null && !"".equals(searchMap.get("receiverMobile"))) {
                criteria.andLike("receiverMobile", "%" + searchMap.get("receiverMobile") + "%");
            }
            // 收货人地址
            if (searchMap.get("receiverAddress") != null && !"".equals(searchMap.get("receiverAddress"))) {
                criteria.andLike("receiverAddress", "%" + searchMap.get("receiverAddress") + "%");
            }
            // 订单来源：1:web，2：app，3：微信公众号，4：微信小程序  5 H5手机页面
            if (searchMap.get("sourceType") != null && !"".equals(searchMap.get("sourceType"))) {
                criteria.andEqualTo("sourceType", searchMap.get("sourceType"));
            }
            // 交易流水号
            if (searchMap.get("transactionId") != null && !"".equals(searchMap.get("transactionId"))) {
                criteria.andLike("transactionId", "%" + searchMap.get("transactionId") + "%");
            }
            // 订单状态
            if (searchMap.get("orderStatus") != null && !"".equals(searchMap.get("orderStatus"))) {
                criteria.andEqualTo("orderStatus", searchMap.get("orderStatus"));
            }
            // 支付状态
            if (searchMap.get("payStatus") != null && !"".equals(searchMap.get("payStatus"))) {
                criteria.andEqualTo("payStatus", searchMap.get("payStatus"));
            }
            // 发货状态
            if (searchMap.get("consignStatus") != null && !"".equals(searchMap.get("consignStatus"))) {
                criteria.andEqualTo("consignStatus", searchMap.get("consignStatus"));
            }
            // 是否删除
            if (searchMap.get("isDelete") != null && !"".equals(searchMap.get("isDelete"))) {
                criteria.andEqualTo("isDelete", searchMap.get("isDelete"));
            }

            // 数量合计
            if (searchMap.get("totalNum") != null) {
                criteria.andEqualTo("totalNum", searchMap.get("totalNum"));
            }
            // 金额合计
            if (searchMap.get("totalMoney") != null) {
                criteria.andEqualTo("totalMoney", searchMap.get("totalMoney"));
            }
            // 优惠金额
            if (searchMap.get("preMoney") != null) {
                criteria.andEqualTo("preMoney", searchMap.get("preMoney"));
            }
            // 邮费
            if (searchMap.get("postFee") != null) {
                criteria.andEqualTo("postFee", searchMap.get("postFee"));
            }
            // 实付金额
            if (searchMap.get("payMoney") != null) {
                criteria.andEqualTo("payMoney", searchMap.get("payMoney"));
            }

        }
        return example;
    }

}
